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# Copyright 1999-2018 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
EAPI=0
inherit toolchain-glibc prefix
DESCRIPTION="GNU libc6 (also called glibc2) C library"
HOMEPAGE="https://www.gnu.org/software/libc/libc.html"
LICENSE="LGPL-2.1+ BSD HPND ISC inner-net rc PCRE"
KEYWORDS="alpha amd64 arm arm64 hppa ia64 m68k ~mips ppc ppc64 s390 sh sparc x86"
RESTRICT="strip" # strip ourself #46186
EMULTILIB_PKG="true"
# Configuration variables
RELEASE_VER=""
case ${PV} in
9999*)
EGIT_REPO_URIS="git://sourceware.org/git/glibc.git"
EGIT_SOURCEDIRS="${S}"
inherit git-r3
;;
*)
RELEASE_VER=${PV}
;;
esac
GCC_BOOTSTRAP_VER="4.7.3-r1"
PATCH_VER="3" # Gentoo patchset
NPTL_KERN_VER=${NPTL_KERN_VER:-"2.6.16"} # min kernel version nptl requires
IUSE="debug gd hardened multilib nscd selinux systemd systemtap profile suid vanilla headers-only"
# Here's how the cross-compile logic breaks down ...
# CTARGET - machine that will target the binaries
# CHOST - machine that will host the binaries
# CBUILD - machine that will build the binaries
# If CTARGET != CHOST, it means you want a libc for cross-compiling.
# If CHOST != CBUILD, it means you want to cross-compile the libc.
# CBUILD = CHOST = CTARGET - native build/install
# CBUILD != (CHOST = CTARGET) - cross-compile a native build
# (CBUILD = CHOST) != CTARGET - libc for cross-compiler
# CBUILD != CHOST != CTARGET - cross-compile a libc for a cross-compiler
# For install paths:
# CHOST = CTARGET - install into /
# CHOST != CTARGET - install into /usr/CTARGET/
export CBUILD=${CBUILD:-${CHOST}}
export CTARGET=${CTARGET:-${CHOST}}
if [[ ${CTARGET} == ${CHOST} ]] ; then
if [[ ${CATEGORY} == cross-* ]] ; then
export CTARGET=${CATEGORY#cross-}
fi
fi
[[ ${CTARGET} == hppa* ]] && NPTL_KERN_VER=${NPTL_KERN_VER/2.6.16/2.6.20}
is_crosscompile() {
[[ ${CHOST} != ${CTARGET} ]]
}
# Why SLOT 2.2 you ask yourself while sippin your tea ?
# Everyone knows 2.2 > 0, duh.
SLOT="2.2"
# General: We need a new-enough binutils/gcc to match upstream baseline.
# arch: we need to make sure our binutils/gcc supports TLS.
DEPEND=">=app-misc/pax-utils-0.1.10
!<sys-apps/sandbox-1.6
!<sys-apps/portage-2.1.2
selinux? ( sys-libs/libselinux )"
RDEPEND="!sys-kernel/ps3-sources
selinux? ( sys-libs/libselinux )
!sys-libs/nss-db"
if [[ ${CATEGORY} == cross-* ]] ; then
DEPEND+=" !headers-only? (
>=${CATEGORY}/binutils-2.20
>=${CATEGORY}/gcc-4.3
)"
[[ ${CATEGORY} == *-linux* ]] && DEPEND+=" ${CATEGORY}/linux-headers"
else
DEPEND+="
>=sys-devel/binutils-2.20
>=sys-devel/gcc-4.3
virtual/os-headers
!vanilla? ( >=sys-libs/timezone-data-2012c )"
RDEPEND+="
vanilla? ( !sys-libs/timezone-data )
!vanilla? ( sys-libs/timezone-data )"
fi
upstream_uris() {
echo mirror://gnu/glibc/$1 ftp://sourceware.org/pub/glibc/{releases,snapshots}/$1 mirror://gentoo/$1
}
gentoo_uris() {
local devspace="HTTP~vapier/dist/URI HTTP~azarah/glibc/URI"
devspace=${devspace//HTTP/https://dev.gentoo.org/}
echo mirror://gentoo/$1 ${devspace//URI/$1}
}
SRC_URI=$(
[[ -z ${EGIT_REPO_URIS} ]] && upstream_uris ${P}.tar.xz
[[ -n ${PATCH_VER} ]] && gentoo_uris ${P}-patches-${PATCH_VER}.tar.bz2
)
SRC_URI+=" ${GCC_BOOTSTRAP_VER:+multilib? ( $(gentoo_uris gcc-${GCC_BOOTSTRAP_VER}-multilib-bootstrap.tar.bz2) )}"
src_unpack() {
[[ -n ${GCC_BOOTSTRAP_VER} ]] && use multilib && unpack gcc-${GCC_BOOTSTRAP_VER}-multilib-bootstrap.tar.bz2
toolchain-glibc_src_unpack
cd "${S}"
epatch "${FILESDIR}"/2.19/${PN}-2.19-ia64-gcc-4.8-reloc-hack.patch #503838
if use hardened ; then
einfo "Patching to get working PIE binaries on PIE (hardened) platforms"
tc-enables-pie && epatch "${FILESDIR}"/2.17/glibc-2.17-hardened-pie.patch
epatch "${FILESDIR}"/2.19/glibc-2.19-hardened-configure-picdefault.patch
epatch "${FILESDIR}"/2.18/glibc-2.18-hardened-inittls-nosysenter.patch
einfo "Installing Hardened Gentoo SSP and FORTIFY_SOURCE handler"
cp -f "${FILESDIR}"/2.18/glibc-2.18-gentoo-stack_chk_fail.c \
debug/stack_chk_fail.c || die
cp -f "${FILESDIR}"/2.18/glibc-2.18-gentoo-chk_fail.c \
debug/chk_fail.c || die
if use debug ; then
# When using Hardened Gentoo stack handler, have smashes dump core for
# analysis - debug only, as core could be an information leak
# (paranoia).
sed -i \
-e '/^CFLAGS-backtrace.c/ iCFLAGS-stack_chk_fail.c = -DSSP_SMASH_DUMPS_CORE' \
debug/Makefile \
|| die "Failed to modify debug/Makefile for debug stack handler"
sed -i \
-e '/^CFLAGS-backtrace.c/ iCFLAGS-chk_fail.c = -DSSP_SMASH_DUMPS_CORE' \
debug/Makefile \
|| die "Failed to modify debug/Makefile for debug fortify handler"
fi
# Build nscd with ssp-all
sed -i \
-e 's:-fstack-protector$:-fstack-protector-all:' \
nscd/Makefile \
|| die "Failed to ensure nscd builds with ssp-all"
fi
if [[ "${ARCH}" == "amd64" ]]; then
local LD32="$( get_abi_LIBDIR x86 )"
local LDx32="$( get_abi_LIBDIR x32 )"
local LD64="$( get_abi_LIBDIR amd64 )"
local -i LD32l LDx32l LD64l
(( LD32l = ${#LD32} + 1 ))
(( LDx32l = ${#LDx32} + 1 ))
(( LD64l = ${#LD64} + 1 ))
# In order for this to work, LD64 and LDx32 must share a common root of
# LD32. If this is not the case, then sysdeps/unix/sysv/linux/x86_64/dl-cache.h
# will need to be re-implemented.
local LDx32s="${LDx32#${LD32}}"
local LD64s="${LD64#${LD32}}"
einfo "Using the following libdir paths:"
einfo " 32-bit libraries in '${LD32}'"
einfo " Long-mode 32-bit libraries in '${LDx32}'"
einfo " 64-bit libraries in '${LD64}'"
cd "${S}"
sed -i \
-e "s:/libx32:/${LDx32:-libx32}:g" \
sysdeps/unix/sysv/linux/x86_64/x32/configure \
|| die 'configure patch failed'
sed -i \
-e "/FLAG_ELF_LIBC6/{s:/lib/:/${LD32:-lib}/:}" \
-e "/FLAG_ELF_LIBC6/{s:/libx32/:/${LDx32:-libx32}/:}" \
-e "/FLAG_ELF_LIBC6/{s:/lib64/:/${LD64:-lib64}/:}" \
sysdeps/unix/sysv/linux/x86_64/ldconfig.h \
|| die 'known_interpreter_names replacement failed'
# if (len >= 6 && ! memcmp (path + len - 6, "/lib64", 6)) \
# { \
# len -= 2; \
#
# else if (len >= 7 \
# && ! memcmp (path + len - 7, "/libx32", 7)) \
# { \
# len -= 3; \
#
# if (len >= 4 && ! memcmp (path + len - 4, "/lib", 4)) \
# { \
# memcpy (path + len, "64", 3); \
# add_dir (path); \
# memcpy (path + len, "x32", 4); \
sed -i \
-e "/ memcmp /{s:len >= 6 :len >= ${LD64l} : ; s: 6, \"/lib64\", 6): ${LD64l}, \"/${LD64:-lib64}\", ${LD64l}):}" \
-e "/len -= 2;/{s:len -= 2;:len -= ${#LD64s};:}" \
-e "/else if (len >= 7/{s:len >= 7:len >= ${LDx32l}:}" \
-e "/ memcmp /{s: 7, \"/libx32\", 7): ${LDx32l}, \"/${LDx32:-libx32}\", ${LDx32l}):}" \
-e "/len -= 3;/{s:len -= 3;:len -= ${#LDx32s};:}" \
-e "/ memcmp /{s:len >= 4 :len >= ${LD32l} : ; s: 4, \"/lib\", 4): ${LD32l}, \"/${LD32:-lib}\", ${LD32l}):}" \
-e "/memcpy /{s:len, \"64\", 3):len, \"${LD64s}\", $(( ${#LD64s} + 1 ))):}" \
-e "/memcpy /{s:len, \"x32\", 4):len, \"${LDx32s}\", $(( ${#LDx32s} + 1 ))):}" \
sysdeps/unix/sysv/linux/x86_64/dl-cache.h \
|| die 'dl-cache.h modification failed'
einfo "dl-cache.h now contains:"
cat sysdeps/unix/sysv/linux/x86_64/dl-cache.h
fi
}
pkg_preinst() {
toolchain-glibc_pkg_preinst
if [[ ${CTARGET} == arm* ]] ; then
# Backwards compat support for renaming hardfp ldsos #417287
local oldso='/lib/ld-linux.so.3'
local nldso='/lib/ld-linux-armhf.so.3'
if [[ -e ${D}${nldso} ]] ; then
if scanelf -qRyi "${ROOT}$(alt_prefix)"/*bin/ | grep -s "^${oldso}" ; then
ewarn "Symlinking old ldso (${oldso}) to new ldso (${nldso})."
ewarn "Please rebuild all packages using this old ldso as compat"
ewarn "support will be dropped in the future."
ln -s "${nldso##*/}" "${D}$(alt_prefix)${oldso}"
fi
fi
fi
}
|
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